-th b-p bbb bbh bbi bbp bbr bbs bbt bby bhb bhh bhi bhp bhr bhs bht bi- bib bih bii bip bir bis bit biy bpb bph bpi bpp bpr bps bpt bpy brb brh bri brp brr brs brt bry bsb bsh bsi bsp bsr bss bst bsy btb bth bti btp btr bts btt bty by- byh byi byp byr bys byt h-i hbb hbh hbi hbp hbr hbs hbt hby hhb hhh hhi hhp hhr hhs hht hhy hib hih hii hip hir his hit hpb hph hpi hpp hpr hps hpt hpy hr- hrb hrh hri hrp hrr hrs hrt hsb hsh hsi hsp hsr hss hst hsy htb hth hti htp htr hts htt hty hy- hyb hyh hyi hyp hyr hys hyt hyy ibb ibh ibi ibp ibr ibs ibt iby ihb ihh ihi ihp ihr ihs iht ihy iib iih iii iip iir iis iit ipb ipi ipp ipr ips ipt ipy ir- irb iri irp irr irs irt iry is- isb ish isi isp isr iss ist isy itb ith iti itp its itt ity iyr iys iyt iyy p-p pbb pbi pbp pbr pbs pbt pby phb phi php phr phs pht phy pib pih pii pip pir pis pit ppb pph ppi ppp ppr pps ppt prb prh pri prp prr prs prt pry ps- psb psh psi psp psr pss pst psy pt- ptb pth pti ptp ptr pts ptt pty py- pyb pyr pys pyt rbb rbh rbi rbp rbr rbs rbt rh- rhb rhh rhi rhp rhr rhs rht rib rih rii rip rir ris rit riy rpb rph rpi rpp rpr rps rpt rrb rrh rri rrp rrr rrs rrt rsb rsh rsi rsp rsr rss rst rtb rti rtp rtr rts rtt rty ry- ryr rys ryy sbb sbh sbi sbp sbr sbs sbt sby sh- shb shh shi shp shr shs sht shy sib sih sii sip sir sis sit spb sph spi spp spr sps spt spy sr- srb srh sri srp srr srs srt sry ss- ssb ssh ssi ssp ssr sss sst stb sth sti stp str sts stt sty sy- syb syh syi syp syr sys syt tbb tbh tbi tbp tbr tbs tbt th- thb thh thi thp thr ths tht thy tib tih tii tip tir tis tit tiy tpb tph tpi tpp tpr tps tpt trb trh tri trp trr trs trt try tsb tsh tsi tsp tsr tss tst tsy ttb tth tti ttp ttr tts ttt tty typ tyr tys tyt ybi ybp ybr ybs yby yhi yhs yht yih yii yip yir yis yit yps yrp yrs yrt ysb ysi ysp ysr yss yst ysy yth ytp ytr yts ytt yyb yys yyt yyy